diff --git a/dsSupport/Business/Preview/PreviewController/PreviewController.go b/dsSupport/Business/Preview/PreviewController/PreviewController.go
index 8cb70164..82a0eb30 100644
--- a/dsSupport/Business/Preview/PreviewController/PreviewController.go
+++ b/dsSupport/Business/Preview/PreviewController/PreviewController.go
@@ -1,42 +1,75 @@
 package PreviewController
 
 import (
+	"dsSupport/Const"
 	"dsSupport/Utils/CommonUtil"
+	"dsSupport/Utils/FileUtil"
 	"dsSupport/Utils/ObsUtil"
 	"encoding/base64"
-	"fmt"
 	"github.com/gin-gonic/gin"
-	"log"
+	"io"
 	"net/http"
+	"os"
+	"path"
 	"path/filepath"
+	"strings"
 )
 
 //模块的路由配置
 func Routers(r *gin.RouterGroup) {
 	rr := r.Group("/preview")
 	//配置接口
-	rr.GET("/preview", preview)
+	rr.GET("/previewOffice", previewOffice)
 	return
 }
 
-//	http://127.0.0.1:9000/support/preview/preview
-func preview(c *gin.Context) {
+//	http://127.0.0.1:9000/support/preview/previewOffice
+/**
+功能：提供Office系列文件的预览功能
+作者：黄海
+时间：2020-07-15
+*/
+func previewOffice(c *gin.Context) {
+	// 允许预览的扩展名
+	allowExtension := []string{`doc`, `docx`, `rtf`, `xls`, `xlsx`, `ppt`, `pptx`,
+		`pdf`, `zip`, `rar`, `7z`, `png`, `jpg`, `jpeg`, `wps`, `txt`, `js`, `json`, `css`, `sql`, `xml`, `java`, `cs`}
 	//本地物理路径
-	uEnc :=c.Query("p")
+	uEnc := c.Query("p")
 	uDec, err := base64.URLEncoding.DecodeString(uEnc)
 	if err != nil {
-	         log.Fatalln(err)
-	     }
-	fullPath:=string(uDec)
-	fmt.Println(fullPath)
+		c.String(http.StatusOK, "输入的参数p转为base64Url时失败，请确认是否未经Base64.URLEdcoding进行加码!")
+		return
+	}
+	fullPath := string(uDec)
+	//(1) 是否以http或https开头
+	if strings.HasPrefix(strings.ToLower(fullPath), "https://") || strings.HasPrefix(strings.ToLower(fullPath), "http://") {
+		//文件名称
+		arr := strings.Split(fullPath, "/")
+		fi := arr[len(arr)-1]
+		if !CommonUtil.IsContainString(allowExtension,"."+path.Ext(fi)){
+			c.String(http.StatusOK, "输入的预览文件，系统不支持!")
+			return
+		}
+		//下载
+		res, err := http.Get(fullPath)
+		if err != nil {
+			c.String(http.StatusOK, "输入的网络地址无法找到，不能进行预览!")
+			return
+		}
+		fullPath = CommonUtil.GetCurrentPath() + "/TempFiles/" + fi
+		if FileUtil.Exists(fullPath) {
+			os.Remove(fullPath)
+		}
+		f, err := os.Create(fullPath)
+		if err != nil {
+			c.String(http.StatusOK, "创建文件时发生读写错误:"+err.Error())
+			return
+		}
+		io.Copy(f, res.Body)
+	}
+	//(2) 是不是本地文件
 	_, p := filepath.Split(fullPath)
 
-	//TODO
-	//(1)保允许上传office系列的文件
-	//(2)在上传前判断文件是否已存在,存在了直接返回,不做重复工作，也可以支持强制刷新，需要添加参数
-	//(3)需要判断文件名是不是是标准的GUID形式，不是的不让上传
-	//(4)对于异常的明显提示信息
-
 	//判断是不是本地存在
 	isExist, err := CommonUtil.PathExists(fullPath)
 	if err != nil {
@@ -48,7 +81,7 @@ func preview(c *gin.Context) {
 		return
 	}
 	//将文件上传到华为云
-	key := "dsMinPreview/" + p
+	key := Const.PreviewPrefix + p
 	ObsUtil.UploadFileMultiPart(key, fullPath)
 	//返回地址
 	url := "http://ow365.cn/?i=14531&fname=" + p + "&furl=http%3A%2F%2Fvideo.edusoa.com%2F" + key
diff --git a/dsSupport/Config/logo.txt b/dsSupport/Config/logo.txt
new file mode 100644
index 00000000..e94470c9
--- /dev/null
+++ b/dsSupport/Config/logo.txt
@@ -0,0 +1,11 @@
+       _      _____                              _
+      | |    / ____|                            | |
+    __| |___| (___  _   _ _ __  _ __   ___  _ __| |_
+   / _` / __|\___ \| | | | '_ \| '_ \ / _ \| '__| __|
+  | (_| \__ \____) | |_| | |_) | |_) | (_) | |  | |_
+   \__,_|___/_____/ \__,_| .__/| .__/ \___/|_|   \__|
+                         | |   | |
+                         |_|   |_|
+
+Created By HuangHai 2020-01-20
+http://patorjk.com/software/taag/#p=display&f=Big&t=dsSupport
diff --git a/dsSupport/Const/Const.go b/dsSupport/Const/Const.go
new file mode 100644
index 00000000..1dfd6335
--- /dev/null
+++ b/dsSupport/Const/Const.go
@@ -0,0 +1,3 @@
+package Const
+
+const PreviewPrefix = "dsMinPreview/"
diff --git a/dsSupport/CronTask/CleanPreviewFile.go b/dsSupport/CronTask/CleanPreviewFile.go
new file mode 100644
index 00000000..ef39b63c
--- /dev/null
+++ b/dsSupport/CronTask/CleanPreviewFile.go
@@ -0,0 +1,11 @@
+package CronTask
+
+import (
+	"dsSupport/Const"
+	"dsSupport/Utils/ObsUtil"
+)
+
+func Task() {
+	//删除7天前上传的文件
+	ObsUtil.DeleteExpireFile(Const.PreviewPrefix, 7)
+}
diff --git a/dsSupport/TempFiles/0200C9BE-07C6-4EFC-A945-8554C7D41790.doc b/dsSupport/TempFiles/0200C9BE-07C6-4EFC-A945-8554C7D41790.doc
new file mode 100644
index 00000000..d4d89681
Binary files /dev/null and b/dsSupport/TempFiles/0200C9BE-07C6-4EFC-A945-8554C7D41790.doc differ
diff --git a/dsSupport/Test/PreviewTest/PreviewTest.go b/dsSupport/Test/PreviewTest/PreviewTest.go
index a5d6078b..1aebdb1a 100644
--- a/dsSupport/Test/PreviewTest/PreviewTest.go
+++ b/dsSupport/Test/PreviewTest/PreviewTest.go
@@ -7,18 +7,33 @@ import (
 	"net/http"
 )
 
-func main() {
-	// 如果要用在url中，需要使用URLEncoding
-	input:="C:\\Users\\Administrator\\Desktop\\技术讨论会\\20A4782A-512C-40ED-8AF9-FCFC7CD29E5B.docx"
+/**
+功能：显示预览
+作者：黄海
+时间:2020-07-15
+ */
+func showPreview(input string){
 	uEnc := base64.URLEncoding.EncodeToString([]byte(input))
 	fmt.Println(uEnc)
 	//生成预览OFFICE的服务地址
-	url := "http://10.10.24.100:9000/support/preview/preview"
+	url := "http://10.10.24.100:9000/support/preview/previewOffice"
 	resp, _ := http.Get(url+"?p="+uEnc)
 	defer resp.Body.Close()
 	body, _ := ioutil.ReadAll(resp.Body)
 	fmt.Println(string(body))
+}
+
+func main() {
+	//(1)传入本地文件路径
+	// 如果要用在url中，需要使用URLEncoding
+	//input:="C:\\Users\\Administrator\\Desktop\\技术讨论会\\20A4782A-512C-40ED-8AF9-FCFC7CD29E5B.docx"
+	//showPreview(input)
+	//（2）传入http参数
+	//input="https://dsideal.obs.cn-north-1.myhuaweicloud.com/Material/02/0200C9BE-07C6-4EFC-A945-8554C7D41790.doc"
+	//showPreview(input)
 
+	input:=`E:\Work\ShlProjectJava\src\main\java\com\shl\zuowen\model\zuowenModel.java`
+	showPreview(input)
 	//Java的调用方法示例：
 	//https://blog.csdn.net/orangleliu/article/details/38309367
 }
diff --git a/dsSupport/Utils/CommonUtil/CommonUtil.go b/dsSupport/Utils/CommonUtil/CommonUtil.go
index a796c5cf..9df2eae3 100644
--- a/dsSupport/Utils/CommonUtil/CommonUtil.go
+++ b/dsSupport/Utils/CommonUtil/CommonUtil.go
@@ -7,6 +7,8 @@ import (
 	"log"
 	"os"
 	"os/exec"
+	"path/filepath"
+	"strings"
 )
 
 /**
@@ -65,3 +67,51 @@ func PathExists(path string) (bool, error) {
 	}
 	return false, err
 }
+
+
+/**
+功能：获取当前路径
+作者：黄海
+时间：2020-06-02
+*/
+func GetCurrentPath() string {
+	dir, _ := os.Getwd()
+	dir = strings.ReplaceAll(dir, "\\", "/")
+	return dir
+}
+/**
+功能：获取当前工作目录的父路径
+作者：黄海
+时间：2020-06-02
+*/
+func GetCurrentParentPath()string{
+	return GetParentPath(GetCurrentPath())
+}
+/**
+功能:返回上一级目录
+*/
+func GetParentPath(directory string) string {
+	return strings.Replace(filepath.Dir(directory), "\\", "/", -1)
+}
+
+/**
+功能：数组中是否存在某个字符串
+作者：黄海
+时间：2020-05-30
+*/
+func IsContainString(items []string, item string) bool {
+	for _, eachItem := range items {
+		if eachItem == item {
+			return true
+		}
+	}
+	return false
+}
+func IsContainInt32(items []int32, item int32) bool {
+	for _, eachItem := range items {
+		if eachItem == item {
+			return true
+		}
+	}
+	return false
+}
diff --git a/dsSupport/Utils/FileUtil/FileUtil.go b/dsSupport/Utils/FileUtil/FileUtil.go
index 4fc6e5a1..2f6f2e7b 100644
--- a/dsSupport/Utils/FileUtil/FileUtil.go
+++ b/dsSupport/Utils/FileUtil/FileUtil.go
@@ -3,6 +3,8 @@ package FileUtil
 import (
 	"bufio"
 	"fmt"
+	"io"
+	"log"
 	"os"
 )
 
@@ -57,3 +59,38 @@ func WriteLines(lines []string, path string) error {
 }
 
 
+/**
+功能：读取文件内容
+作者：黄海
+时间：2019-12-31
+*/
+func ReadFileContent(filepath string) string {
+	file, err := os.Open(filepath)
+	if err != nil {
+		log.Print("文件打开失败：", err)
+	}
+	defer file.Close()
+
+	buf := make([]byte, 12) // 存放文件内容的缓存，相当于中转站
+	data := make([]byte, 0) // 用来存放文件内容，buf读取的内容都会写到data里面去
+
+	for {
+		//无限循环，不断读取
+		n, err := file.Read(buf)
+		// 什么时候文件读完呢？如果文件读完的话，那么err不为nil，而是io.EOF
+		// 所以我们可以进行判断
+		if err != nil {
+			//如果err != nil说明出错了，但如果还等于io.EOF的话，说明读完了，因为文件读完，err也不为nil。直接break
+			if err == io.EOF {
+				break
+			} else {
+				//如果错误不是io.EOF的话，说明就真的在读取中出现了错误，直接panic出来
+				//panic(err)
+				fmt.Println(err.Error())
+			}
+		}
+		//此时文件内容写到buf里面去了，写了多少个呢？写了n个，那么我们再写到data里面去
+		data = append(data, buf[:n]...)
+	}
+	return string(data)
+}
\ No newline at end of file
diff --git a/dsSupport/Utils/ObsUtil/ObsUtil.go b/dsSupport/Utils/ObsUtil/ObsUtil.go
index e4d70f27..6ea50a04 100644
--- a/dsSupport/Utils/ObsUtil/ObsUtil.go
+++ b/dsSupport/Utils/ObsUtil/ObsUtil.go
@@ -122,7 +122,6 @@ func UploadFileMultiPart(key string,sourceFile string){
 			close(partChan)
 		}
 	}
-
 	completeMultipartUploadInput := &obs.CompleteMultipartUploadInput{}
 	completeMultipartUploadInput.Bucket = ConfigUtil.Bucket
 	completeMultipartUploadInput.Key = key
diff --git a/dsSupport/go.mod b/dsSupport/go.mod
index 6148b620..f859cc42 100644
--- a/dsSupport/go.mod
+++ b/dsSupport/go.mod
@@ -9,6 +9,7 @@ require (
 	github.com/json-iterator/go v1.1.10 // indirect
 	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
 	github.com/modern-go/reflect2 v1.0.1 // indirect
+	github.com/robfig/cron/v3 v3.0.0
 	golang.org/x/sys v0.0.0-20200625212154-ddb9806d33ae // indirect
 	google.golang.org/protobuf v1.25.0 // indirect
 	gopkg.in/ini.v1 v1.57.0
diff --git a/dsSupport/go.sum b/dsSupport/go.sum
index 5a24d2c8..d90cd535 100644
--- a/dsSupport/go.sum
+++ b/dsSupport/go.sum
@@ -57,6 +57,8 @@ github.com/modern-go/reflect2 v1.0.1 h1:9f412s+6RmYXLWZSEzVVgPGK7C2PphHj5RJrvfx9
 github.com/modern-go/reflect2 v1.0.1/go.mod h1:bx2lNnkwVCuqBIxFjflWJWanXIb3RllmbCylyMrvgv0=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
+github.com/robfig/cron/v3 v3.0.0 h1:kQ6Cb7aHOHTSzNVNEhmp8EcWKLb4CbiMW9h9VyIhO4E=
+github.com/robfig/cron/v3 v3.0.0/go.mod h1:eQICP3HwyT7UooqI/z+Ov+PtYAWygg1TEWWzGIFLtro=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
 github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
diff --git a/dsSupport/main.go b/dsSupport/main.go
index 9d820291..db1b7f97 100644
--- a/dsSupport/main.go
+++ b/dsSupport/main.go
@@ -1,11 +1,20 @@
 package main
 
 import (
+	"dsSupport/CronTask"
 	"dsSupport/Router"
+	"dsSupport/Utils/FileUtil"
+	"fmt"
 	"github.com/gin-gonic/gin"
+	"github.com/robfig/cron/v3"
 )
 
 func main(){
+	// 一、显示Logo
+	configIniFile := "./Config/logo.txt"
+	var logo = FileUtil.ReadFileContent(configIniFile)
+	fmt.Print(logo)
+
 	r := gin.Default()
 	//主路由
 	Router.GinRouter(r)
@@ -14,6 +23,20 @@ func main(){
 	// http://127.0.0.1:9000/M3u8/B7/B7318F5D-46B8-4AA1-8811-1A9D65528E19/B7318F5D-46B8-4AA1-8811-1A9D65528E19.m3u8
 	//r.Static("/M3u8", "./Target")
 
+	//定时任务
+	crontab:=cron.New(cron.WithSeconds())  //精确到秒
+
+	//定义定时器调用的任务函数
+	task := func() {
+		CronTask.Task()
+	}
+	//定时任务
+	spec := "0 0 */1 * * ?" //cron表达式，每1小时一次
+	// 添加定时任务
+	crontab.AddFunc(spec, task)
+	// 启动定时器
+	crontab.Start()
+
 	// 指定地址和端口号
 	r.Run(":9000")
 }